For Isla Alcatras :
No gale warning.
The reliability of the situation is very good.
Skies very cloudy, risk of some thundery outbreaks. Risk of some spots of rain in the morning, showers late in the day. In the evening, overcast skies with risk of thundery outbreaks.
Light showers. NNW force 1 turning SW force 2 in the middle of the day then WNW. Gusts reaching 9 knots in the middle of the day. Slight sea. Low, fairly long swell from SSW. Excellent visibility becoming poor in the middle of the day then reduced by mist.